140 



Journal of Agricultural Research 



Vol. XIII, No. 2 



Table III.- 



-Comparison of the growth of sorghum varieties at Chillicothe, Tex., Bard 

 and Chula Vista, Cat., and Ptiyallup, Wash. 



Variety and 

 location. 



Sumac sorgo: 



Chillicothe.... 



Bard 



Chula Vista. . . 



Puyallup 



Red Amber sorgo; 

 Chillicothe... 



Bard 



Chula Vista. . . 



Puyallup 



Honey sorgo: 

 ChilUcothe. 

 Bard 



Chula Vista. 

 Puyallup. . . 



Blackhull kafir: 

 Chillicothe.. 



Bard 



Chula Vista. 



Puyallup . . . 



Dwarf milo: 

 Chillicothe. 

 Bard 



Chula Vista. 

 Puyallup . . . 



Feterita: 



Chillicothe. 

 Bard 



Chula Vista. 



Puyallup. 



Average: 



Chillicothe. . 



Bard 



Chula Vista. 

 Puyallup . . . 



Date 

 planted. 



May 21 



Apr. 22 



May 23 



May 15 



May 21 

 Apr. 14 

 Jime 27 



May 15 



May 21 

 Apr. 14 



June 28 



May 15 



May 21 

 Apr. 16 

 June 28 



May 15 



May 21 

 Apr. 22 



June 29 



May 15 



May 21 

 Apr. 20 



June 29 



May 1 5 



Date 

 emerged. 



May 

 Apr. 

 May 



May 30 



May 25 



Apr. 20 



July 2 



May 30 



May 25 

 Apr. 20 



July 

 June 



May 25 



Apr. 21 



July 3 



May 29 



May 25 

 Apr. 27 



July 4 

 May 29 



May 25 

 Apr. 25 



July 



May 29 



Date 90 



per cent 



ripe. 



Sept. 13 

 Sept. 2 

 Oct. 31 



(a) 



Aug. 13 

 Aug. 10 

 Oct. 31 



Oct. 6 

 Aug. 31 



Sept. 10 

 Sept. 2 

 Dec. 5 



Aug. 30 

 Aug. 30 



Nov. 



Aug. 13 

 Aug. 12 



Grow- 

 ing 

 sea- 

 son. 



Diam- 

 Final | eter 

 height, of 

 stem. 



Days. 



"S 

 133 

 i5i 



° 143 



118 

 126 



138 

 139 



137 

 J43 



112 

 139 

 160 



lOI 

 130 



129 

 143 



114 

 134 



106 

 129 

 141 



In. 

 80 

 108 

 68 



30 



66 



69 



Remarks. 



A normal vigorous growth. 



Tall, vigorous growth. 



Fairly normal growth, not es- 

 pecially vigorous. 



October 5, growth low and 

 spreading, leaves somewhat 

 curled; not yet heading. 



Uniform growth. 



Normal, vigorous growth. 



A typical, fine-stemmed 

 growth. 



A few heads in bloom on Octo- 

 ber 5. Growth somewhat 

 spreading. Leaves ciuled 

 and red on the edges. 



Late, rank growth. 



A good, vigorous growth, some 

 tendency to lodge. 



Mediimi height, growth nor- 

 mal. 



A low, spreading inferior 

 growth. No heads. 



Normal, vigorous growth. 



Good, vigorous growth. 



Uniform growth and well-filled 

 seed heads. 



October 5, growth quite up- 

 right, but with no heads. 



Uniform, vigorous growth. 

 Typical milo of poor forage 



value, but good grain. 

 Typical milo, but with rather 



numerous tillers. 

 October 5, beginning to head, 



but very undersized. 



Uniform, vigorous growth. 



Stems too slender for typical 

 milo. 



Fair growth, but did not seem 

 at home under these condi- 

 tions. 



October s, growth spreading, 

 leaves curled and red on 

 edges, no heads. 



o None of the varieties matured at Puyallup, so that the growing season for each variety represents only 

 the period from the date of planting to October 5. 



All of the varieties under discussion are thoroughly at home under the 

 climatic conditions at Chillicothe. A long experience in growing sorghum 

 at this point indicates that Chillicothe's cHmate is well suited to the 

 requirements of the crop and the results there may be taken as a cri- 

 terion of normality of growth (PI. ii, 12). The data in the table show 

 an average growing season for the varieties under consideration of 106 

 days at Chillicothe, as compared with 129 days at Bard, and 141 days 

 at Chula Vista. We find, however, in Table V that a later date of plant- 



